Platinum is a silvery metallic chemical element, a member of the six transition elements in Group VIII of the periodic table known collectively as the platinum metals (ruthenium, rhodium, palladium, osmium, iridium, and platinum). Platinum has the symbol Pt, its atomic number is 78, and its atomic weight is 195.09.
What elements is platinum made of?
atomic number78electron configuration[Xe]4f145d96s1
What is aqua regia?
aqua regia, mixture of concentrated nitric and hydrochloric acids, usually one part of the former to three parts of the latter by volume. This mixture was given its name (literally, “royal water”) by the alchemists because of its ability to dissolve gold. It is a red or yellowish liquid.
What minerals make up platinum?
Platinum minerals are usually highly disseminated in sulfide ores, particularly the nickel mineral pentlandite, (Ni,Fe)9S8. The most common platinum-group minerals include laurite, RuS2; irarsite, (Ir,Ru,Rh,Pt)AsS; osmiridium, (Ir,Os); cooperite, (PtS); and braggite, (Pt,Pd)S.How do you make platinum?
Most of the mining for platinum ore occurs deep underground. To extract the mineral-rich materials, miners pack explosives into holes drilled in the rock and blast it into smaller pieces. The broken rock is then collected and transported to the surface for processing. Platinum production in South Africa.
What kind of rock is platinum found in?
Where it’s found: Platinum in the Earth’s crust originates from ultra-mafic igneous rocks. It can therefore be associated with rocks like chromite and olivine.
Can platinum be made?
Most commercially produced platinum comes from South Africa, from the mineral cooperite (platinum sulfide). Some platinum is prepared as a by-product of copper and nickel refining.
What will dissolve gold?
Aqua regia is a mixture of nitric and hydrochloric acids. It takes its name from its ability to dissolve gold, which is sometimes referred to as the royal metal.Is platinum a mineral or element?
Platinum is a chemical element with the symbol Pt and atomic number 78. It is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal. Its name originates from Spanish platina, a diminutive of plata “silver.”
What's the strongest acid in the world?Fluoroantimonic acid is the strongest superacid based on the measured value of its Hammett acidity function (H0), which has been determined for different ratios of HF:SbF5.
Article first time published onWhat is the name of HNO3?
Nitric acid (HNO3), also known as aqua fortis (Latin for “strong water”) and spirit of niter, is a highly corrosive mineral acid. The pure compound is colorless, but older samples tend to acquire a yellow cast due to decomposition into oxides of nitrogen and water.
What is platinum ore?
natural mineral formations containing platinum group metals (platinum, palladium, iridium, rhodium, osmium, and ruthenium) in economic concentrations. These ore bodies are closely related genetically and spatially to intrusions of basic and ultrabasic rocks and are predominantly magmatic in origin. …
Why is platinum so rare?
In general, this rare metal is found in deposits of small grains, dust, or small nuggets that averages from 50 to 75% in purity. Small amounts of platinum are obtained by mining other products. However, this metal is normally found in ores that are mixed with other metals like palladium and gold.
How do you make carbon platinum?
Preparation. An aqueous solution of activated carbon and chloroplatinic acid is heated on a water bath for a few hours at 50°C, and after cooling, the solution is then made alkaline using sodium carbonate.
What is white gold made of?
White gold was originally developed to imitate platinum (a naturally white metal). White gold is usually an alloy containing about 75% gold and about 25% nickel and zinc. If stamped 18 karat, it would be 75% pure gold.
Where is platinum found in nature?
Platinum is found in its pure native form or in platiniridium, a natural alloy of platinum and iridium. Platinum is present in thin sulfide layers in certain mafic igneous bodies and is mined in Canada, Russia, South Africa, the USA, Zimbabwe and Australia.
What does gold marked 750 mean?
“750” means “18-karat gold“. “585” means “14-karat gold”. “417” means “10-karat gold”. But there’s more to know about gold markings on jewelry.
Is platinum magnetic yes or no?
The quick answer is no, Platinum on its pure form is not magnetic (a paramagnetic metal). … Just like gold, pure platinum is soft and malleable in that it is alloyed with different metals which may or may not have magnetic properties.
How can you tell if its real platinum?
Look for an inscription that says “platinum” on the item. If your piece is marked with the word “platinum,” it is at least 95% pure. More commonly, you will see a number like 850 or 85 followed by “pt” or “plat.” This indicates that 85/100 parts are platinum, meaning the piece is 85% pure.
Does platinum have crystals in it?
Platinum crystallizes in the isometric crystal system, described as face-centered cubic. Crystals may have rounded corners, and can feature penetration twins. … Unlike other precious metals, platinum does not belong to the copper (gold) group but to the platinum group elements (usually labeled just as PGE).
Is platinum greater than gold?
The main reason for this is that precious metals are priced by weight, and platinum is much denser than gold, meaning it will be heavier. Another reason why platinum rings are more valuable than gold is because the metal is much rarer.
Is platinum a native element?
A brief treatment of native elements follows. … These native elements are commonly divided into three groups—namely, metals (platinum, iridium, osmium, iron, zinc, tin, gold, silver, copper, mercury, lead, chromium); semimetals (bismuth, antimony, arsenic, tellurium, selenium); and nonmetals (sulfur, carbon).
Is platinum a gold?
Platinum is a naturally occurring white metal. It is rarer than gold, and much heavier and harder. Because of its hardness, platinum can be used in a purer form than gold. … Platinum jewelelry is consequently more expensive than gold jewellery.
What does aqua regia do to gold?
Aqua regia is a yellow-orange (sometimes red) fuming liquid, so named by alchemists because it can dissolve the noble metals gold and platinum, though not all metals.
How do you make aqua regia?
Aqua regia composition: 3 parts hydrochloric acid to 1 part nitric acid, by volume. 2. Only prepare aqua regia in a fume hood.
Can aqua regia dissolve diamond?
according to me it’s not,aqua regia is a type of acid…and non metal can’t be easily reactive to acid…and even diamond is a allotrope of carbon it’s molecular bond is too strong to get break by any of the acid…
Does acid destroy DNA?
DNA degrades rapidly in low pH and high heat, both of which are produced in a body decomposed by sulfuric acid.
What is Piranha liquid?
Piranha solutions are a mixture of concentrated sulfuric acid with hydrogen peroxide, usually in a ratio of 3:1 to 7:1. They are used to remove trace amounts of organic residues, such as photoresist, from substrates. The mixing procedure is an exothermic reaction that can reach temperatures of 100⁰C or higher.
Can acid eat through glass?
For anybody who watched cartoons growing up, the word acid probably springs to mind images of gaping holes being burnt into the floor by a spill, and liquid that would dissolve anything you drop into it. … These acids are capable of dissolving almost anything – wax, rocks, metals (even platinum), and yes, even glass.
What is the correct name for h2so4?
sulfuric acid, sulfuric also spelled sulphuric (H2SO4), also called oil of vitriol, or hydrogen sulfate, dense, colourless, oily, corrosive liquid; one of the most commercially important of all chemicals.
What is the correct name for h2co3?
carbonic acid, (H2CO3), a compound of the elements hydrogen, carbon, and oxygen. It is formed in small amounts when its anhydride, carbon dioxide (CO2), dissolves in water.
